#024559
Closest named color: Charcoal (#264653). oklch(36.4% 0.068 225.3), rgb(2, 69, 89).
Aa
White text reads best on this color (10.51:1).
About this color
#024559 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.068 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.027 away. White text reads best on it, at 10.51:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #024559 |
| RGB | rgb(2, 69, 89) |
| HSL | hsl(194, 96%, 18%) |
| OKLCH | oklch(36.4% 0.068 225.3) |
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 #024559 | 10.51:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #024559 | 1.99:1 | Fails | Lc 10.0 | Not readable |
| #024559 text on white | 10.51:1 | AAA | Lc 93.9 | Preferred for body text |
| #024559 text on black | 1.99:1 | Fails | Lc -8.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9EC8DA
oklch(80.9% 0.051 225.9)
-
Step 400
400
#65ACC7
oklch(70.8% 0.081 224.6)
-
Step 500
500
#3096B9
oklch(63.1% 0.104 225.4)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900 (this color)
#024559
oklch(36.4% 0.068 225.3)
-
Step 950
950
#092B36
oklch(27.1% 0.043 223.5)
#024559 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) | #3A435A | 0.051 |
| Deuteranopia (no green cones) | #2F3C59 | 0.044 |
| Tritanopia (no blue cones) | #004B4C | 0.035 |
| Achromatopsia (no color) | #3F3F3F | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #024559
#024559
oklch(36.4% 0.068 225.3)
- #5B311E
#5B311E
oklch(36.2% 0.068 44.4)
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 #024559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.036
- Dark Teal #014D4E ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.052
- Deep Teal #00555A ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.056
Use #024559 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.