#30588D
Closest named color: Light Navy Blue (#2E5A88). oklch(45.8% 0.098 256.1), rgb(48, 88, 141).
Aa
White text reads best on this color (7.22:1).
About this color
#30588D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.098 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.011 away. White text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #30588D |
| RGB | rgb(48, 88, 141) |
| HSL | hsl(214, 49%, 37%) |
| OKLCH | oklch(45.8% 0.098 256.1) |
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 #30588D | 7.22:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #30588D | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #30588D text on white | 7.22:1 | AAA | Lc 84.9 | Fine for body text |
| #30588D text on black | 2.90:1 | Fails | Lc -17.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDBEF
oklch(88.6% 0.032 255.6)
-
Step 300
300
#A9C3E6
oklch(81% 0.057 255.9)
-
Step 400
400
#7BA3D9
oklch(70.7% 0.091 256.1)
-
Step 500
500
#588BCF
oklch(63.1% 0.117 256)
-
Step 600
600
#3D74BC
oklch(55.6% 0.127 256)
-
Step 700
700
#2F61A2
oklch(49.1% 0.118 256)
-
Step 800
800 (this color)
#30588D
oklch(45.8% 0.098 256.1)
-
Step 900
900
#254269
oklch(37.6% 0.076 256.3)
-
Step 950
950
#16273E
oklch(27% 0.049 256.3)
#30588D 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) | #415C8F | 0.024 |
| Deuteranopia (no green cones) | #34538C | 0.014 |
| Tritanopia (no blue cones) | #00646C | 0.079 |
| Achromatopsia (no color) | #575757 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30588D
#30588D
oklch(45.8% 0.098 256.1)
- #754F00
#754F00
oklch(45.8% 0.096 76.9)
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 #30588D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.011
- Denim Blue #3B5B92 ΔE 0.018
- Dusk Blue #26538D ΔE 0.019
- Dusky Blue #475F94 ΔE 0.037
- Denim #3B638C ΔE 0.037
- Light Navy #155084 ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.038
- Twilight #4E518B ΔE 0.040
Use #30588D 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.