#306D94
Closest named color: Ocean Blue (#03719C). oklch(51.2% 0.088 239.8), rgb(48, 109, 148).
Aa
White text reads best on this color (5.61:1).
About this color
#306D94 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.088 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.022 away. White text reads best on it, at 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #306D94 |
| RGB | rgb(48, 109, 148) |
| HSL | hsl(203, 51%, 38%) |
| OKLCH | oklch(51.2% 0.088 239.8) |
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 #306D94 | 5.61:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #306D94 | 3.74:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #306D94 text on white | 5.61:1 | AA | Lc 77.8 | Fine for body text |
| #306D94 text on black | 3.74:1 | AA large text | Lc -23.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#79A7C7
oklch(70.7% 0.068 239.3)
-
Step 500
500
#5591B9
oklch(63.2% 0.087 239.3)
-
Step 600
600
#377AA5
oklch(55.5% 0.095 239.8)
-
Step 700
700 (this color)
#306D94
oklch(51.2% 0.088 239.8)
-
Step 800
800
#245473
oklch(42.7% 0.073 239.9)
-
Step 900
900
#23455D
oklch(37.6% 0.057 241.3)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#306D94 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) | #5B6D96 | 0.047 |
| Deuteranopia (no green cones) | #4D6393 | 0.039 |
| Tritanopia (no blue cones) | #00777A | 0.063 |
| Achromatopsia (no color) | #686868 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306D94
#306D94
oklch(51.2% 0.088 239.8)
- #8C5A2E
#8C5A2E
oklch(51.4% 0.089 60.1)
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 #306D94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.022
- Muted Blue #3B719F ΔE 0.023
- Sea Blue #047495 ΔE 0.026
- Denim #3B638C ΔE 0.029
- Peacock Blue #016795 ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.037
- Dull Blue #49759C ΔE 0.037
- Metallic Blue #4F738E ΔE 0.040
Use #306D94 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.