#073958
Closest named color: Prussian Blue (#1D3557). oklch(33.1% 0.074 242.5), rgb(7, 57, 88).
Aa
White text reads best on this color (12.10:1).
About this color
#073958 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.074 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 12.10:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.73:1 |
| White text | 12.10:1 |
Values
| HEX | #073958 |
| RGB | rgb(7, 57, 88) |
| HSL | hsl(203, 85%, 19%) |
| OKLCH | oklch(33.1% 0.074 242.5) |
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 #073958 | 12.10:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #073958 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #073958 text on white | 12.10:1 | AAA | Lc 97.3 | Preferred for body text |
| #073958 text on black | 1.73:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A2C6E2
oklch(81% 0.055 241.8)
-
Step 400
400
#6EA7D3
oklch(70.6% 0.088 242.7)
-
Step 500
500
#4391C8
oklch(63.2% 0.113 242.3)
-
Step 600
600
#1C7AB5
oklch(55.6% 0.123 242.6)
-
Step 700
700
#09669C
oklch(49% 0.115 243)
-
Step 800
800
#0F547E
oklch(42.8% 0.094 242.1)
-
Step 900
900 (this color)
#073958
oklch(33.1% 0.074 242.5)
-
Step 950
950
#0F293B
oklch(27% 0.046 241.6)
#073958 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) | #2A3A59 | 0.034 |
| Deuteranopia (no green cones) | #1F3357 | 0.025 |
| Tritanopia (no blue cones) | #004144 | 0.051 |
| Achromatopsia (no color) | #363636 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #073958
#073958
oklch(33.1% 0.074 242.5)
- #502B02
#502B02
oklch(33% 0.074 61.6)
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 #073958, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Midnight Green #073B4C ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.029
- Marine Blue #01386A ΔE 0.033
- Marine #042E60 ΔE 0.040
- Gunmetal #293241 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.056
Use #073958 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.