#2B4076
Closest named color: Twilight Blue (#0A437A). oklch(38.4% 0.096 266), rgb(43, 64, 118).
Aa
White text reads best on this color (10.01:1).
About this color
#2B4076 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.096 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.027 away. White text reads best on it, at 10.01:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #2B4076 |
| RGB | rgb(43, 64, 118) |
| HSL | hsl(223, 47%, 32%) |
| OKLCH | oklch(38.4% 0.096 266) |
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 #2B4076 | 10.01:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #2B4076 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #2B4076 text on white | 10.01:1 | AAA | Lc 93.0 | Preferred for body text |
| #2B4076 text on black | 2.09:1 | Fails | Lc -9.4 | 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 900.
-
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
#ABC0F0
oklch(80.9% 0.072 266.3)
-
Step 400
400
#7F9EE9
oklch(70.7% 0.116 266.4)
-
Step 500
500
#5F84E2
oklch(63% 0.148 266.1)
-
Step 600
600
#476CD0
oklch(55.7% 0.16 266.1)
-
Step 700
700
#3959B4
oklch(49% 0.149 266.4)
-
Step 800
800
#2F4A92
oklch(42.8% 0.123 265.9)
-
Step 900
900 (this color)
#2B4076
oklch(38.4% 0.096 266)
-
Step 950
950
#182544
oklch(27% 0.061 265.4)
#2B4076 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) | #274678 | 0.017 |
| Deuteranopia (no green cones) | #1C3F75 | 0.017 |
| Tritanopia (no blue cones) | #004C55 | 0.082 |
| Achromatopsia (no color) | #424242 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4076
#2B4076
oklch(38.4% 0.096 266)
- #564000
#564000
oklch(38.5% 0.079 86.5)
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 #2B4076, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.027
- Cobalt #1E488F ΔE 0.045
- Light Navy #155084 ΔE 0.049
- Marine Blue #01386A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.060
- Dusk Blue #26538D ΔE 0.062
Use #2B4076 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.