#30587F
Closest named color: Light Navy Blue (#2E5A88). oklch(44.9% 0.079 249.4), rgb(48, 88, 127).
Aa
White text reads best on this color (7.42:1).
About this color
#30587F is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.079 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.015 away. White text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #30587F |
| RGB | rgb(48, 88, 127) |
| HSL | hsl(210, 45%, 34%) |
| OKLCH | oklch(44.9% 0.079 249.4) |
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 #30587F | 7.42:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #30587F | 2.82:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #30587F text on white | 7.42:1 | AAA | Lc 85.6 | Fine for body text |
| #30587F text on black | 2.82:1 | Fails | Lc -16.4 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#ABC4DE
oklch(81% 0.046 249.4)
-
Step 400
400
#7DA5CD
oklch(70.8% 0.073 248.9)
-
Step 500
500
#5B8EC0
oklch(63.2% 0.094 249)
-
Step 600
600
#4077AD
oklch(55.6% 0.103 249.8)
-
Step 700
700
#316494
oklch(49.1% 0.095 249.1)
-
Step 800
800 (this color)
#30587F
oklch(44.9% 0.079 249.4)
-
Step 900
900
#264461
oklch(37.7% 0.062 249)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#30587F 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) | #475A81 | 0.029 |
| Deuteranopia (no green cones) | #3D527E | 0.021 |
| Tritanopia (no blue cones) | #006166 | 0.064 |
| Achromatopsia (no color) | #555555 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30587F
#30587F
oklch(44.9% 0.079 249.4)
- #714C1E
#714C1E
oklch(44.8% 0.079 69)
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 #30587F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.025
- Dusk Blue #26538D ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.035
- Light Navy #155084 ΔE 0.037
- Dusk #4E5481 ΔE 0.039
- Denim #3B638C ΔE 0.039
Use #30587F 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.