#0070AB
Closest named color: Ocean Blue (#03719C). oklch(52.3% 0.125 242.4), rgb(0, 112, 171).
Aa
White text reads best on this color (5.37:1).
About this color
#0070AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.125 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.025 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #0070AB |
| RGB | rgb(0, 112, 171) |
| HSL | hsl(201, 100%, 34%) |
| OKLCH | oklch(52.3% 0.125 242.4) |
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 #0070AB | 5.37:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #0070AB | 3.90:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #0070AB text on white | 5.37:1 | AA | Lc 76.1 | Fine for body text |
| #0070AB text on black | 3.90:1 | AA large text | Lc -25.6 | 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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#9FC6E5
oklch(80.9% 0.061 242.5)
-
Step 400
400
#68A8D8
oklch(70.7% 0.097 242.3)
-
Step 500
500
#3891CE
oklch(63.1% 0.124 242.6)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700 (this color)
#0070AB
oklch(52.3% 0.125 242.4)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#0F4668
oklch(37.8% 0.08 241.5)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#0070AB 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) | #5372AE | 0.057 |
| Deuteranopia (no green cones) | #3D64AA | 0.043 |
| Tritanopia (no blue cones) | #007F85 | 0.086 |
| Achromatopsia (no color) | #6A6A6A | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0070AB
#0070AB
oklch(52.3% 0.125 242.4)
- #995700
#995700
oklch(52.2% 0.12 62.4)
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 #0070AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.025
- Mid Blue #276AB3 ΔE 0.026
- Nice Blue #107AB0 ΔE 0.030
- Flat Blue #3C73A8 ΔE 0.033
- Muted Blue #3B719F ΔE 0.034
- French Blue #436BAD ΔE 0.039
- Sea Blue #047495 ΔE 0.040
- Peacock Blue #016795 ΔE 0.040
Use #0070AB 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.