#055DA7
Closest named color: Peacock Blue (#016795). oklch(47.5% 0.139 251.9), rgb(5, 93, 167).
Aa
White text reads best on this color (6.70:1).
About this color
#055DA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.139 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.045 away. White text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.13:1 |
| White text | 6.70:1 |
Values
| HEX | #055DA7 |
| RGB | rgb(5, 93, 167) |
| HSL | hsl(207, 94%, 34%) |
| OKLCH | oklch(47.5% 0.139 251.9) |
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 #055DA7 | 6.70:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #055DA7 | 3.13:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #055DA7 text on white | 6.70:1 | AA | Lc 82.5 | Fine for body text |
| #055DA7 text on black | 3.13:1 | AA large text | Lc -19.4 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A1C4EC
oklch(80.9% 0.068 252)
-
Step 400
400
#6DA5E2
oklch(70.8% 0.108 251.5)
-
Step 500
500
#438DDA
oklch(63.2% 0.138 251.7)
-
Step 600
600
#1F75C7
oklch(55.6% 0.149 251.9)
-
Step 700
700 (this color)
#055DA7
oklch(47.5% 0.139 251.9)
-
Step 800
800
#12508B
oklch(42.7% 0.115 251.9)
-
Step 900
900
#18436F
oklch(37.7% 0.089 251.8)
-
Step 950
950
#0F2741
oklch(26.8% 0.057 252.3)
#055DA7 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) | #3663AA | 0.037 |
| Deuteranopia (no green cones) | #1356A6 | 0.019 |
| Tritanopia (no blue cones) | #006F7A | 0.101 |
| Achromatopsia (no color) | #5C5C5C | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055DA7
#055DA7
oklch(47.5% 0.139 251.9)
- #7F5100
#7F5100
oklch(47.5% 0.102 71.8)
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 #055DA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.045
- Mid Blue #276AB3 ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.046
- Dusk Blue #26538D ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.057
- Denim #3B638C ΔE 0.060
- French Blue #436BAD ΔE 0.063
Use #055DA7 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.