#2A4496
Closest named color: Cobalt (#1E488F). oklch(41.6% 0.138 266.9), rgb(42, 68, 150).
Aa
White text reads best on this color (8.87:1).
About this color
#2A4496 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.138 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.019 away. White text reads best on it, at 8.87:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.36:1 |
| White text | 8.87:1 |
Values
| HEX | #2A4496 |
| RGB | rgb(42, 68, 150) |
| HSL | hsl(226, 56%, 38%) |
| OKLCH | oklch(41.6% 0.138 266.9) |
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 #2A4496 | 8.87:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #2A4496 | 2.36:1 | Fails | Lc 14.0 | Not readable |
| #2A4496 text on white | 8.87:1 | AAA | Lc 89.9 | Fine for body text |
| #2A4496 text on black | 2.36:1 | Fails | Lc -12.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#A9C0F6
oklch(81% 0.081 266.7)
-
Step 400
400
#7C9DF1
oklch(70.7% 0.129 266.8)
-
Step 500
500
#5C82EC
oklch(63.1% 0.165 266.8)
-
Step 600
600
#4469DB
oklch(55.7% 0.179 266.9)
-
Step 700
700
#3656BE
oklch(49% 0.168 267)
-
Step 800
800 (this color)
#2A4496
oklch(41.6% 0.138 266.9)
-
Step 900
900
#283D7A
oklch(37.8% 0.107 266.9)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#2A4496 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) | #064F99 | 0.033 |
| Deuteranopia (no green cones) | #004594 | 0.027 |
| Tritanopia (no blue cones) | #005866 | 0.112 |
| Achromatopsia (no color) | #4A4A4A | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4496
#2A4496
oklch(41.6% 0.138 266.9)
- #604800
#604800
oklch(41.6% 0.085 86.7)
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 #2A4496, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.019
- Blueberry #464196 ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.046
- Dusk Blue #26538D ΔE 0.046
- Sapphire #2138AB ΔE 0.047
- Light Navy #155084 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.063
Use #2A4496 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.