#2D4382
Closest named color: Cobalt (#1E488F). oklch(40% 0.109 266.9), rgb(45, 67, 130).
Aa
White text reads best on this color (9.38:1).
About this color
#2D4382 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.109 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.026 away. White text reads best on it, at 9.38:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #2D4382 |
| RGB | rgb(45, 67, 130) |
| HSL | hsl(224, 49%, 34%) |
| OKLCH | oklch(40% 0.109 266.9) |
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 #2D4382 | 9.38:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #2D4382 | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #2D4382 text on white | 9.38:1 | AAA | Lc 91.5 | Preferred for body text |
| #2D4382 text on black | 2.23:1 | Fails | Lc -10.9 | 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
#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
#A9C0F7
oklch(81% 0.082 266.9)
-
Step 400
400
#7C9DF2
oklch(70.7% 0.13 267)
-
Step 500
500
#5C82EE
oklch(63.2% 0.167 267)
-
Step 600
600
#4368DC
oklch(55.5% 0.182 267)
-
Step 700
700
#3556BF
oklch(49.1% 0.169 266.8)
-
Step 800
800
#2C479B
oklch(42.7% 0.141 266.9)
-
Step 900
900 (this color)
#2D4382
oklch(40% 0.109 266.9)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#2D4382 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) | #244A84 | 0.020 |
| Deuteranopia (no green cones) | #144381 | 0.024 |
| Tritanopia (no blue cones) | #00515C | 0.092 |
| Achromatopsia (no color) | #464646 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4382
#2D4382
oklch(40% 0.109 266.9)
- #5B4400
#5B4400
oklch(40% 0.082 86.6)
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 #2D4382, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.026
- Twilight Blue #0A437A ΔE 0.033
- Light Navy #155084 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.044
- Dusk Blue #26538D ΔE 0.046
- Blueberry #464196 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.053
- Twilight #4E518B ΔE 0.066
Use #2D4382 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.