#AECFEF
Closest named color: Light Blue Grey (#B7C9E2). oklch(84.1% 0.057 247.7), rgb(174, 207, 239).
Aa
Black text reads best on this color (12.97:1).
About this color
#AECFEF is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.057 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.021 away. Black text reads best on it, at 12.97:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.97:1 |
| White text | 1.61:1 |
Values
| HEX | #AECFEF |
| RGB | rgb(174, 207, 239) |
| HSL | hsl(210, 67%, 81%) |
| OKLCH | oklch(84.1% 0.057 247.7) |
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 #AECFEF | 1.61:1 | Fails | Lc -31.3 | Non-text elements, placeholder text |
| Black text on #AECFEF | 12.97:1 | AAA | Lc 76.1 | Fine for body text |
| #AECFEF text on white | 1.61:1 | Fails | Lc 27.7 | Dividers and decoration only |
| #AECFEF text on black | 12.97:1 | AAA | Lc -75.2 | Fine for body text |
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 300.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300 (this color)
#AECFEF
oklch(84.1% 0.057 247.7)
-
Step 400
400
#71A6D7
oklch(70.7% 0.091 247.3)
-
Step 500
500
#498FCC
oklch(63.1% 0.116 247.2)
-
Step 600
600
#2878B9
oklch(55.7% 0.126 247.4)
-
Step 700
700
#1964A0
oklch(49% 0.119 248)
-
Step 800
800
#185281
oklch(42.6% 0.098 247.5)
-
Step 900
900
#1B4468
oklch(37.6% 0.077 248)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#AECFEF 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) | #C3CFF1 | 0.027 |
| Deuteranopia (no green cones) | #BBC8EE | 0.023 |
| Tritanopia (no blue cones) | #9BD6D9 | 0.048 |
| Achromatopsia (no color) | #CBCBCB | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AECFEF
#AECFEF
oklch(84.1% 0.057 247.7)
- #E5C5A4
#E5C5A4
oklch(84.2% 0.057 67.8)
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 #AECFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.021
- Baby Blue #A2CFFE ΔE 0.025
- Light Blue #ADD8E6 ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.040
- Light Periwinkle #C1C6FC ΔE 0.041
- Sky Blue #87CEEB ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.045
Use #AECFEF 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.