#024059
Closest named color: Midnight Green (#073B4C). oklch(35% 0.071 232.8), rgb(2, 64, 89).
Aa
White text reads best on this color (11.16:1).
About this color
#024059 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.071 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.025 away. White text reads best on it, at 11.16:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #024059 |
| RGB | rgb(2, 64, 89) |
| HSL | hsl(197, 96%, 18%) |
| OKLCH | oklch(35% 0.071 232.8) |
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 #024059 | 11.16:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #024059 | 1.88:1 | Fails | Lc 8.5 | Not readable |
| #024059 text on white | 11.16:1 | AAA | Lc 95.4 | Preferred for body text |
| #024059 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#9FC7DE
oklch(80.9% 0.054 233.5)
-
Step 400
400
#68AACD
oklch(70.7% 0.085 232.9)
-
Step 500
500
#3694C0
oklch(63.1% 0.109 232.7)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900 (this color)
#024059
oklch(35% 0.071 232.8)
-
Step 950
950
#0B2A39
oklch(27% 0.045 233.1)
#024059 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) | #333F5A | 0.044 |
| Deuteranopia (no green cones) | #283859 | 0.037 |
| Tritanopia (no blue cones) | #004749 | 0.042 |
| Achromatopsia (no color) | #3B3B3B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #024059
#024059
oklch(35% 0.071 232.8)
- #572F13
#572F13
oklch(35.1% 0.071 53)
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 #024059, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.037
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Marine Blue #01386A ΔE 0.043
- Dark Teal #014D4E ΔE 0.053
- Twilight Blue #0A437A ΔE 0.058
Use #024059 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.