#023A60
Closest named color: Marine Blue (#01386A). oklch(33.8% 0.085 245.9), rgb(2, 58, 96).
Aa
White text reads best on this color (11.81:1).
About this color
#023A60 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.085 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.020 away. White text reads best on it, at 11.81:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.77:1 |
| White text | 11.81:1 |
Values
| HEX | #023A60 |
| RGB | rgb(2, 58, 96) |
| HSL | hsl(204, 96%, 19%) |
| OKLCH | oklch(33.8% 0.085 245.9) |
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 #023A60 | 11.81:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #023A60 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #023A60 text on white | 11.81:1 | AAA | Lc 96.6 | Preferred for body text |
| #023A60 text on black | 1.77:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#9FC5E8
oklch(80.8% 0.064 246.5)
-
Step 400
400
#69A7DC
oklch(70.8% 0.101 245.7)
-
Step 500
500
#3A90D3
oklch(63.2% 0.13 245.6)
-
Step 600
600
#0378C0
oklch(55.5% 0.142 246)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#015386
oklch(42.8% 0.108 245.4)
-
Step 900
900 (this color)
#023A60
oklch(33.8% 0.085 245.9)
-
Step 950
950
#0C283F
oklch(26.8% 0.055 246.6)
#023A60 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) | #273C62 | 0.032 |
| Deuteranopia (no green cones) | #19345F | 0.022 |
| Tritanopia (no blue cones) | #004348 | 0.059 |
| Achromatopsia (no color) | #373737 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #023A60
#023A60
oklch(33.8% 0.085 245.9)
- #512E00
#512E00
oklch(33.8% 0.075 66)
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 #023A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.020
- Prussian Blue #1D3557 ΔE 0.025
- Midnight Green #073B4C ΔE 0.037
- Marine #042E60 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.039
- Twilight Blue #0A437A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.056
- Charcoal #264653 ΔE 0.060
Use #023A60 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.