#203A48
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.4% 0.04 233.3), rgb(32, 58, 72).
Aa
White text reads best on this color (11.93:1).
About this color
#203A48 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.040 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.009 away. White text reads best on it, at 11.93:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.76:1 |
| White text | 11.93:1 |
Values
| HEX | #203A48 |
| RGB | rgb(32, 58, 72) |
| HSL | hsl(201, 38%, 20%) |
| OKLCH | oklch(33.4% 0.04 233.3) |
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 #203A48 | 11.93:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #203A48 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #203A48 text on white | 11.93:1 | AAA | Lc 97.3 | Preferred for body text |
| #203A48 text on black | 1.76:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D1
oklch(80.8% 0.03 233.7)
-
Step 400
400
#83A6BA
oklch(70.6% 0.048 233.4)
-
Step 500
500
#6390A9
oklch(63% 0.062 233.4)
-
Step 600
600
#497A95
oklch(55.6% 0.068 233.9)
-
Step 700
700
#3A677F
oklch(49.2% 0.063 233.3)
-
Step 800
800
#305467
oklch(42.7% 0.052 232.9)
-
Step 900
900 (this color)
#203A48
oklch(33.4% 0.04 233.3)
-
Step 950
950
#1A2931
oklch(27.1% 0.025 232.2)
#203A48 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) | #333949 | 0.026 |
| Deuteranopia (no green cones) | #2E3548 | 0.024 |
| Tritanopia (no blue cones) | #0B3E3F | 0.030 |
| Achromatopsia (no color) | #373737 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203A48
#203A48
oklch(33.4% 0.04 233.3)
- #473122
#473122
oklch(33.5% 0.041 55.1)
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 #203A48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.009
- Midnight Green #073B4C ΔE 0.020
- Gunmetal #293241 ΔE 0.027
- Onyx #343A40 ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.036
- Charcoal #264653 ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.048
Use #203A48 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.