#307097
Closest named color: Muted Blue (#3B719F). oklch(52.1% 0.09 238.6), rgb(48, 112, 151).
Aa
White text reads best on this color (5.39:1).
About this color
#307097 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.017 away. White text reads best on it, at 5.39:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #307097 |
| RGB | rgb(48, 112, 151) |
| HSL | hsl(203, 52%, 39%) |
| OKLCH | oklch(52.1% 0.09 238.6) |
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 #307097 | 5.39:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #307097 | 3.89:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #307097 text on white | 5.39:1 | AA | Lc 76.7 | Fine for body text |
| #307097 text on black | 3.89:1 | AA large text | Lc -25.1 | 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 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
#CBDCE8
oklch(88.5% 0.025 238.4)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#78A7C7
oklch(70.7% 0.069 238.8)
-
Step 500
500
#5391B9
oklch(63.1% 0.088 238.6)
-
Step 600
600
#347BA5
oklch(55.7% 0.096 238)
-
Step 700
700 (this color)
#307097
oklch(52.1% 0.09 238.6)
-
Step 800
800
#225473
oklch(42.7% 0.074 239.1)
-
Step 900
900
#21465D
oklch(37.8% 0.058 238.2)
-
Step 950
950
#142936
oklch(27% 0.036 237.4)
#307097 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) | #5E7099 | 0.050 |
| Deuteranopia (no green cones) | #506696 | 0.040 |
| Tritanopia (no blue cones) | #007A7D | 0.063 |
| Achromatopsia (no color) | #6A6A6A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #307097
#307097
oklch(52.1% 0.09 238.6)
- #8F5C31
#8F5C31
oklch(52.2% 0.089 59.1)
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 #307097, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.017
- Ocean Blue #03719C ΔE 0.020
- Sea Blue #047495 ΔE 0.022
- Flat Blue #3C73A8 ΔE 0.030
- Dull Blue #49759C ΔE 0.030
- Metallic Blue #4F738E ΔE 0.036
- Denim #3B638C ΔE 0.038
- Peacock Blue #016795 ΔE 0.038
Use #307097 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.