#1870A2
Closest named color: Ocean Blue (#03719C). oklch(52.1% 0.111 240.2), rgb(24, 112, 162).
Aa
White text reads best on this color (5.41:1).
About this color
#1870A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.111 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.013 away. White text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #1870A2 |
| RGB | rgb(24, 112, 162) |
| HSL | hsl(202, 74%, 36%) |
| OKLCH | oklch(52.1% 0.111 240.2) |
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 #1870A2 | 5.41:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #1870A2 | 3.87:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #1870A2 text on white | 5.41:1 | AA | Lc 76.6 | Fine for body text |
| #1870A2 text on black | 3.87:1 | AA large text | Lc -25.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C8DCEB
oklch(88.4% 0.03 240.2)
-
Step 300
300
#A2C6E0
oklch(80.9% 0.053 239.7)
-
Step 400
400
#6EA8D1
oklch(70.7% 0.085 240.3)
-
Step 500
500
#4291C5
oklch(63% 0.11 240.5)
-
Step 600
600
#1A7BB1
oklch(55.6% 0.118 239.8)
-
Step 700
700 (this color)
#1870A2
oklch(52.1% 0.111 240.2)
-
Step 800
800
#0E547C
oklch(42.6% 0.092 240.7)
-
Step 900
900
#174664
oklch(37.8% 0.072 240.7)
-
Step 950
950
#0F293A
oklch(26.9% 0.045 240)
#1870A2 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) | #5871A4 | 0.056 |
| Deuteranopia (no green cones) | #4664A1 | 0.045 |
| Tritanopia (no blue cones) | #007D82 | 0.074 |
| Achromatopsia (no color) | #6A6A6A | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1870A2
#1870A2
oklch(52.1% 0.111 240.2)
- #965718
#965718
oklch(51.9% 0.111 60)
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 #1870A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.013
- Muted Blue #3B719F ΔE 0.024
- Sea Blue #047495 ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.029
- Nice Blue #107AB0 ΔE 0.033
- Peacock Blue #016795 ΔE 0.033
- Mid Blue #276AB3 ΔE 0.036
- French Blue #436BAD ΔE 0.040
Use #1870A2 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.