#2D4BA9
Closest named color: Cobalt (#1E488F). oklch(44.7% 0.155 266.6), rgb(45, 75, 169).
Aa
White text reads best on this color (7.80:1).
About this color
#2D4BA9 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.155 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.046 away. White text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #2D4BA9 |
| RGB | rgb(45, 75, 169) |
| HSL | hsl(225, 58%, 42%) |
| OKLCH | oklch(44.7% 0.155 266.6) |
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 #2D4BA9 | 7.80:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #2D4BA9 | 2.69:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #2D4BA9 text on white | 7.80:1 | AAA | Lc 86.6 | Fine for body text |
| #2D4BA9 text on black | 2.69:1 | Fails | Lc -15.4 | Dividers and decoration only |
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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FB
oklch(88.5% 0.05 266.5)
-
Step 300
300
#A6C0FC
oklch(81% 0.09 266.3)
-
Step 400
400
#779CFB
oklch(70.7% 0.145 266.6)
-
Step 500
500
#5680F8
oklch(63.1% 0.185 266.6)
-
Step 600
600
#3D65E7
oklch(55.5% 0.202 266.7)
-
Step 700
700
#3053C9
oklch(49.1% 0.188 266.6)
-
Step 800
800 (this color)
#2D4BA9
oklch(44.7% 0.155 266.6)
-
Step 900
900
#243B81
oklch(37.7% 0.122 266.8)
-
Step 950
950
#15234B
oklch(26.9% 0.076 266.7)
#2D4BA9 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) | #0058AC | 0.037 |
| Deuteranopia (no green cones) | #004DA7 | 0.027 |
| Tritanopia (no blue cones) | #006272 | 0.125 |
| Achromatopsia (no color) | #525252 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4BA9
#2D4BA9
oklch(44.7% 0.155 266.6)
- #6A5000
#6A5000
oklch(44.6% 0.091 86.9)
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 #2D4BA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.046
- Blueberry #464196 ΔE 0.047
- Sapphire #2138AB ΔE 0.050
- Dusk Blue #26538D ΔE 0.053
- Blue Blue #2242C7 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.067
Use #2D4BA9 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.