#2C498E
Closest named color: Cobalt (#1E488F). oklch(42.2% 0.119 264.7), rgb(44, 73, 142).
Aa
White text reads best on this color (8.56:1).
About this color
#2C498E is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.119 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.014 away. White text reads best on it, at 8.56:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #2C498E |
| RGB | rgb(44, 73, 142) |
| HSL | hsl(222, 53%, 36%) |
| OKLCH | oklch(42.2% 0.119 264.7) |
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 #2C498E | 8.56:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #2C498E | 2.45:1 | Fails | Lc 14.8 | Not readable |
| #2C498E text on white | 8.56:1 | AAA | Lc 89.2 | Fine for body text |
| #2C498E text on black | 2.45:1 | Fails | Lc -13.1 | Not readable |
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 800.
-
Step 50
50
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F4
oklch(88.5% 0.039 266.5)
-
Step 300
300
#AAC1EF
oklch(81% 0.07 264.1)
-
Step 400
400
#7E9FE7
oklch(70.7% 0.112 264.9)
-
Step 500
500
#5E85DF
oklch(63% 0.143 264.9)
-
Step 600
600
#456DCD
oklch(55.6% 0.155 264.8)
-
Step 700
700
#375BB2
oklch(49.2% 0.144 264.7)
-
Step 800
800 (this color)
#2C498E
oklch(42.2% 0.119 264.7)
-
Step 900
900
#283F73
oklch(37.7% 0.094 264.4)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#2C498E 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) | #255191 | 0.022 |
| Deuteranopia (no green cones) | #0F488D | 0.024 |
| Tritanopia (no blue cones) | #005964 | 0.099 |
| Achromatopsia (no color) | #4C4C4C | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C498E
#2C498E
oklch(42.2% 0.119 264.7)
- #634900
#634900
oklch(42.2% 0.086 85.1)
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 #2C498E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.014
- Dusk Blue #26538D ΔE 0.029
- Light Navy #155084 ΔE 0.033
- Blueberry #464196 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.046
- Twilight Blue #0A437A ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.053
Use #2C498E 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.