#2F83BA
Closest named color: Steel Blue (#4682B4). oklch(58.5% 0.116 241.7), rgb(47, 131, 186).
Aa
Black text reads best on this color (5.07:1).
About this color
#2F83BA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.116 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.018 away. Black text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #2F83BA |
| RGB | rgb(47, 131, 186) |
| HSL | hsl(204, 60%, 46%) |
| OKLCH | oklch(58.5% 0.116 241.7) |
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 #2F83BA | 4.13:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #2F83BA | 5.07:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #2F83BA text on white | 4.13:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #2F83BA text on black | 5.07:1 | AA | Lc -33.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A4C5E0
oklch(80.8% 0.052 243.1)
-
Step 400
400
#71A7D0
oklch(70.6% 0.083 242.1)
-
Step 500
500
#4891C4
oklch(63.2% 0.106 241.6)
-
Step 600
600 (this color)
#2F83BA
oklch(58.5% 0.116 241.7)
-
Step 700
700
#156798
oklch(49.2% 0.107 241.6)
-
Step 800
800
#16547B
oklch(42.7% 0.089 241.6)
-
Step 900
900
#1A4663
oklch(37.8% 0.069 241)
-
Step 950
950
#11293A
oklch(27% 0.044 241.7)
#2F83BA 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) | #6984BC | 0.056 |
| Deuteranopia (no green cones) | #5677B9 | 0.044 |
| Tritanopia (no blue cones) | #009196 | 0.081 |
| Achromatopsia (no color) | #7D7D7D | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F83BA
#2F83BA
oklch(58.5% 0.116 241.7)
- #AC6A28
#AC6A28
oklch(58.5% 0.116 61.6)
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 #2F83BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.018
- Cool Blue #4984B8 ΔE 0.021
- Blue NCS #118AB2 ΔE 0.028
- Water Blue #0E87CC ΔE 0.028
- Windows Blue #3778BF ΔE 0.034
- Nice Blue #107AB0 ΔE 0.034
- Off Blue #5684AE ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.044
Use #2F83BA 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.