#024E73
Closest named color: Deep Sea Blue (#015482). oklch(40.3% 0.089 238.7), rgb(2, 78, 115).
Aa
White text reads best on this color (8.97:1).
About this color
#024E73 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.089 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.029 away. White text reads best on it, at 8.97:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.33:1 |
| White text | 8.97:1 |
Values
| HEX | #024E73 |
| RGB | rgb(2, 78, 115) |
| HSL | hsl(200, 97%, 23%) |
| OKLCH | oklch(40.3% 0.089 238.7) |
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 #024E73 | 8.97:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #024E73 | 2.33:1 | Fails | Lc 13.9 | Not readable |
| #024E73 text on white | 8.97:1 | AAA | Lc 90.1 | Preferred for body text |
| #024E73 text on black | 2.33:1 | Fails | Lc -12.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DCEB
oklch(88.4% 0.03 240.2)
-
Step 300
300
#A2C6DF
oklch(80.9% 0.052 238.6)
-
Step 400
400
#6EA8CF
oklch(70.7% 0.083 239)
-
Step 500
500
#4292C3
oklch(63.1% 0.107 238.7)
-
Step 600
600
#1A7BAF
oklch(55.5% 0.116 238.8)
-
Step 700
700
#066897
oklch(49.2% 0.108 238.6)
-
Step 800
800 (this color)
#024E73
oklch(40.3% 0.089 238.7)
-
Step 900
900
#174662
oklch(37.6% 0.069 238.8)
-
Step 950
950
#0F293A
oklch(26.9% 0.045 240)
#024E73 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) | #3C4E75 | 0.047 |
| Deuteranopia (no green cones) | #2D4572 | 0.037 |
| Tritanopia (no blue cones) | #00575B | 0.057 |
| Achromatopsia (no color) | #494949 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #024E73
#024E73
oklch(40.3% 0.089 238.7)
- #6B3A0A
#6B3A0A
oklch(40.2% 0.09 58.3)
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 #024E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy #155084 ΔE 0.031
- Twilight Blue #0A437A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.045
- Dusk Blue #26538D ΔE 0.052
- Deep Teal #00555A ΔE 0.054
- Charcoal #264653 ΔE 0.055
- Cobalt #1E488F ΔE 0.056
Use #024E73 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.