#305973
Closest named color: YInMn Blue (#415A77). oklch(44.6% 0.063 238.2), rgb(48, 89, 115).
Aa
White text reads best on this color (7.49:1).
About this color
#305973 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.063 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.022 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #305973 |
| RGB | rgb(48, 89, 115) |
| HSL | hsl(203, 41%, 32%) |
| OKLCH | oklch(44.6% 0.063 238.2) |
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 #305973 | 7.49:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #305973 | 2.80:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #305973 text on white | 7.49:1 | AAA | Lc 85.9 | Fine for body text |
| #305973 text on black | 2.80:1 | Fails | Lc -16.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE5
oklch(88.4% 0.02 238.7)
-
Step 300
300
#ABC5D6
oklch(80.9% 0.037 236.6)
-
Step 400
400
#7EA6C1
oklch(70.6% 0.059 238.2)
-
Step 500
500
#5D90B2
oklch(63.1% 0.075 238.8)
-
Step 600
600
#417A9E
oklch(55.6% 0.082 238.4)
-
Step 700
700
#336787
oklch(49.2% 0.076 238)
-
Step 800
800 (this color)
#305973
oklch(44.6% 0.063 238.2)
-
Step 900
900
#274559
oklch(37.6% 0.05 239.2)
-
Step 950
950
#172934
oklch(27.1% 0.031 236.4)
#305973 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) | #4D5974 | 0.036 |
| Deuteranopia (no green cones) | #445273 | 0.030 |
| Tritanopia (no blue cones) | #006062 | 0.050 |
| Achromatopsia (no color) | #555555 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305973
#305973
oklch(44.6% 0.063 238.2)
- #6E4B30
#6E4B30
oklch(44.5% 0.062 57.9)
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 #305973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.035
- Petrol #005F6A ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.043
- Dusty Grape #545775 ΔE 0.047
- Denim #3B638C ΔE 0.049
- Dusk #4E5481 ΔE 0.049
- Light Navy #155084 ΔE 0.050
Use #305973 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.