#3057A7
Closest named color: Denim Blue (#3B5B92). oklch(47.3% 0.136 262.8), rgb(48, 87, 167).
Aa
White text reads best on this color (6.89:1).
About this color
#3057A7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.136 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.039 away. White text reads best on it, at 6.89:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.04:1 |
| White text | 6.89:1 |
Values
| HEX | #3057A7 |
| RGB | rgb(48, 87, 167) |
| HSL | hsl(220, 55%, 42%) |
| OKLCH | oklch(47.3% 0.136 262.8) |
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 #3057A7 | 6.89:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #3057A7 | 3.04:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #3057A7 text on white | 6.89:1 | AA | Lc 83.5 | Fine for body text |
| #3057A7 text on black | 3.04:1 | AA large text | Lc -18.5 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#AAC1EC
oklch(80.8% 0.066 262.8)
-
Step 400
400
#7DA0E3
oklch(70.7% 0.106 262.8)
-
Step 500
500
#5D87DB
oklch(63.1% 0.135 263)
-
Step 600
600
#436FC8
oklch(55.6% 0.147 262.8)
-
Step 700
700 (this color)
#3057A7
oklch(47.3% 0.136 262.8)
-
Step 800
800
#2C4C8C
oklch(42.7% 0.113 262.6)
-
Step 900
900
#284070
oklch(37.8% 0.088 262.8)
-
Step 950
950
#172642
oklch(27.1% 0.056 262)
#3057A7 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) | #2C60AA | 0.024 |
| Deuteranopia (no green cones) | #0F55A5 | 0.025 |
| Tritanopia (no blue cones) | #006A77 | 0.110 |
| Achromatopsia (no color) | #5A5A5A | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3057A7
#3057A7
oklch(47.3% 0.136 262.8)
- #765500
#765500
oklch(47.2% 0.097 82.4)
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 #3057A7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.039
- Dusk Blue #26538D ΔE 0.045
- Dusky Blue #475F94 ΔE 0.050
- Mid Blue #276AB3 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.053
- Twilight #4E518B ΔE 0.056
- Cobalt #1E488F ΔE 0.060
- Peacock Blue #016795 ΔE 0.061
Use #3057A7 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.