#30637E
Closest named color: Denim (#3B638C). oklch(47.6% 0.07 234), rgb(48, 99, 126).
Aa
White text reads best on this color (6.53:1).
About this color
#30637E is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.070 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.027 away. White text reads best on it, at 6.53:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.21:1 |
| White text | 6.53:1 |
Values
| HEX | #30637E |
| RGB | rgb(48, 99, 126) |
| HSL | hsl(201, 45%, 34%) |
| OKLCH | oklch(47.6% 0.07 234) |
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 #30637E | 6.53:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #30637E | 3.21:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #30637E text on white | 6.53:1 | AA | Lc 82.2 | Fine for body text |
| #30637E text on black | 3.21:1 | AA large text | Lc -19.7 | 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 700.
-
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
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#ACC5D3
oklch(80.9% 0.034 232.3)
-
Step 400
400
#80A7BE
oklch(70.8% 0.054 234.4)
-
Step 500
500
#5E91AD
oklch(63.1% 0.069 233.4)
-
Step 600
600
#437B99
oklch(55.7% 0.075 233.8)
-
Step 700
700 (this color)
#30637E
oklch(47.6% 0.07 234)
-
Step 800
800
#2C546A
oklch(42.6% 0.058 234.5)
-
Step 900
900
#284656
oklch(37.8% 0.045 233)
-
Step 950
950
#182932
oklch(27% 0.028 232.3)
#30637E 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) | #56627F | 0.045 |
| Deuteranopia (no green cones) | #4B5A7E | 0.038 |
| Tritanopia (no blue cones) | #006A6C | 0.049 |
| Achromatopsia (no color) | #5D5D5D | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30637E
#30637E
oklch(47.6% 0.07 234)
- #7B5135
#7B5135
oklch(47.5% 0.07 53.9)
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 #30637E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.027
- YInMn Blue #415A77 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.036
- Peacock Blue #016795 ΔE 0.040
- Slate #516572 ΔE 0.043
- Petrol #005F6A ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.047
- Dark Aqua #05696B ΔE 0.048
Use #30637E 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.