#2E438A
Closest named color: Cobalt (#1E488F). oklch(40.7% 0.121 268.2), rgb(46, 67, 138).
Aa
White text reads best on this color (9.18:1).
About this color
#2E438A is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.121 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.020 away. White text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #2E438A |
| RGB | rgb(46, 67, 138) |
| HSL | hsl(226, 50%, 36%) |
| OKLCH | oklch(40.7% 0.121 268.2) |
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 #2E438A | 9.18:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #2E438A | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #2E438A text on white | 9.18:1 | AAA | Lc 90.9 | Preferred for body text |
| #2E438A text on black | 2.28:1 | Fails | Lc -11.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F4
oklch(88.5% 0.039 267.9)
-
Step 300
300
#ADC0EF
oklch(81% 0.07 267.6)
-
Step 400
400
#839DE7
oklch(70.6% 0.113 268.7)
-
Step 500
500
#6483E0
oklch(63% 0.144 268.2)
-
Step 600
600
#4D6BCE
oklch(55.6% 0.156 268.3)
-
Step 700
700
#3E59B2
oklch(49.2% 0.145 268)
-
Step 800
800 (this color)
#2E438A
oklch(40.7% 0.121 268.2)
-
Step 900
900
#2C3E73
oklch(37.7% 0.093 267.7)
-
Step 950
950
#1A2443
oklch(26.9% 0.06 268.7)
#2E438A 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) | #1B4C8D | 0.028 |
| Deuteranopia (no green cones) | #014489 | 0.033 |
| Tritanopia (no blue cones) | #005460 | 0.101 |
| Achromatopsia (no color) | #484848 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E438A
#2E438A
oklch(40.7% 0.121 268.2)
- #5C4600
#5C4600
oklch(40.6% 0.083 88.1)
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 #2E438A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.020
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.040
- Twilight Blue #0A437A ΔE 0.042
- Light Navy #155084 ΔE 0.043
- Dusk Blue #26538D ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.057
- Sapphire #2138AB ΔE 0.063
Use #2E438A 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.