#2B4469
Closest named color: Dark Grey Blue (#29465B). oklch(38.5% 0.071 258), rgb(43, 68, 105).
Aa
White text reads best on this color (9.84:1).
About this color
#2B4469 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.071 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.84:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #2B4469 |
| RGB | rgb(43, 68, 105) |
| HSL | hsl(216, 42%, 29%) |
| OKLCH | oklch(38.5% 0.071 258) |
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 #2B4469 | 9.84:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #2B4469 | 2.13:1 | Fails | Lc 11.2 | Not readable |
| #2B4469 text on white | 9.84:1 | AAA | Lc 92.7 | Preferred for body text |
| #2B4469 text on black | 2.13:1 | Fails | Lc -9.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ACC2E3
oklch(80.8% 0.053 258.4)
-
Step 400
400
#80A2D6
oklch(70.7% 0.085 258.7)
-
Step 500
500
#5F8ACB
oklch(63% 0.11 258.4)
-
Step 600
600
#4573B7
oklch(55.5% 0.118 258)
-
Step 700
700
#37609E
oklch(49% 0.11 258.5)
-
Step 800
800
#2E4F80
oklch(42.7% 0.091 258.1)
-
Step 900
900 (this color)
#2B4469
oklch(38.5% 0.071 258)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#2B4469 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) | #35476B | 0.017 |
| Deuteranopia (no green cones) | #2D4168 | 0.009 |
| Tritanopia (no blue cones) | #024C51 | 0.063 |
| Achromatopsia (no color) | #434343 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4469
#2B4469
oklch(38.5% 0.071 258)
- #583E0F
#583E0F
oklch(38.4% 0.071 77.9)
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 #2B4469, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Twilight Blue #0A437A ΔE 0.039
- Charcoal #264653 ΔE 0.042
- Light Navy #155084 ΔE 0.052
- Marine Blue #01386A ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.058
Use #2B4469 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.