#2F5CCC
Closest named color: Warm Blue (#4B57DB). oklch(51% 0.181 264.3), rgb(47, 92, 204).
Aa
White text reads best on this color (5.95:1).
About this color
#2F5CCC is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.181 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.039 away. White text reads best on it, at 5.95:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #2F5CCC |
| RGB | rgb(47, 92, 204) |
| HSL | hsl(223, 63%, 49%) |
| OKLCH | oklch(51% 0.181 264.3) |
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 #2F5CCC | 5.95:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #2F5CCC | 3.52:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #2F5CCC text on white | 5.95:1 | AA | Lc 79.3 | Fine for body text |
| #2F5CCC text on black | 3.52:1 | AA large text | Lc -22.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9D9FA
oklch(88.4% 0.049 264.9)
-
Step 300
300
#A4C0FA
oklch(80.8% 0.088 264.5)
-
Step 400
400
#749EF8
oklch(70.8% 0.14 264.2)
-
Step 500
500
#5182F4
oklch(63% 0.179 264.4)
-
Step 600
600
#3768E3
oklch(55.5% 0.195 264.5)
-
Step 700
700 (this color)
#2F5CCC
oklch(51% 0.181 264.3)
-
Step 800
800
#2347A0
oklch(42.7% 0.151 264.3)
-
Step 900
900
#213D7F
oklch(37.8% 0.117 264.2)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#2F5CCC 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) | #006BD0 | 0.039 |
| Deuteranopia (no green cones) | #005DCA | 0.023 |
| Tritanopia (no blue cones) | #00788B | 0.143 |
| Achromatopsia (no color) | #646464 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5CCC
#2F5CCC
oklch(51% 0.181 264.3)
- #826000
#826000
oklch(51% 0.105 84.3)
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 #2F5CCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.039
- Azul #1D5DEC ΔE 0.050
- Royal Blue #4169E1 ΔE 0.050
- Mid Blue #276AB3 ΔE 0.057
- Neon Blue #4361EE ΔE 0.058
- Iris #6258C4 ΔE 0.062
- Blue Blue #2242C7 ΔE 0.065
- Cerulean Blue #056EEE ΔE 0.066
Use #2F5CCC 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.