#0973F0
Closest named color: Cerulean Blue (#056EEE). oklch(57.8% 0.207 257.7), rgb(9, 115, 240).
Aa
Black text reads best on this color (4.72:1).
About this color
#0973F0 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.207 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.013 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.207) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #0973F0 |
| RGB | rgb(9, 115, 240) |
| HSL | hsl(212, 93%, 49%) |
| OKLCH | oklch(57.8% 0.207 257.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0973F0 | 4.44:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #0973F0 | 4.72:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #0973F0 text on white | 4.44:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #0973F0 text on black | 4.72:1 | AA | Lc -31.6 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C4DBFC
oklch(88.5% 0.052 257.4)
-
Step 300
300
#9BC3FD
oklch(81% 0.093 257.6)
-
Step 400
400
#62A1FC
oklch(70.7% 0.149 257.6)
-
Step 500
500
#3286F9
oklch(63.1% 0.19 257.5)
-
Step 600
600 (this color)
#0973F0
oklch(57.8% 0.207 257.7)
-
Step 700
700
#005BC3
oklch(49.1% 0.179 257.6)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#0C3F82
oklch(37.8% 0.124 257.6)
-
Step 950
950
#0A254C
oklch(26.9% 0.079 258.2)
#0973F0 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0882F4 | 0.038 |
| Deuteranopia (no green cones) | #006EEE | 0.013 |
| Tritanopia (no blue cones) | #0092A6 | 0.156 |
| Achromatopsia (no color) | #777777 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0973F0
#0973F0
oklch(57.8% 0.207 257.7)
- #A06F00
#A06F00
oklch(57.8% 0.12 78.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0973F0, closest first.
No curated palette has a color within ΔE 0.04 of #0973F0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.013
- Clear Blue #247AFD ΔE 0.029
- Bright Blue #0165FC ΔE 0.039
- Royal Blue #4169E1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.048
- Azul #1D5DEC ΔE 0.052
- Warm Blue #4B57DB ΔE 0.076
- Electric Blue #0652FF ΔE 0.077
Use #0973F0 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.